11. The Clausius-Clapeyron equation relates the rate of change of pressure with:
a) Temperature
b) Volume
c) Enthalpy
d) Entropy
12. The critical point of a substance is the point at which:
a) It changes phase from liquid to gas
b) It changes phase from solid to liquid
c) It changes phase from gas to liquid
d) Its vapor pressure exceeds the critical pressure
13. The phase change from gas to solid is called:
a) Melting
b) Condensation
c) Sublimation
d) Deposition
14. The heat capacity of a substance is defined as the:
a) Amount of heat required to raise its temperature by 1 degree Celsius
b) Amount of heat required to raise its temperature by 1 Kelvin
c) Amount of heat required to change its phase at constant temperature
d) Amount of heat required to change its phase at constant pressure
15. The specific heat capacity of a substance is defined as the:
a) Amount of heat required to raise its temperature by 1 degree Celsius per unit mass
b) Amount of heat required to raise its temperature by 1 Kelvin per unit mass
c) Amount of heat required to change its phase at constant temperature per unit mass
d) Amount of heat required to change its phase at constant pressure per unit mass
